textproduct: Quad Cities

KEY MESSAGES

- Quiet weather and pleasant temperatures and humidity continue into Monday.

- Mainly dry this week with 20 to 40 percent chances of showers and storms on Wednesday and again next Saturday.

SHORT TERM /THROUGH MONDAY/

Issued at 200 PM CDT Sun Aug 23 2026

Nice late August weather is expected through Monday with seasonable temperatures and comfortable humidity. Expect lows in the 50s tonight, and then a rebound into the upper 70s/low 80s for Monday. Winds will remain light with high pressure in control.

LONG TERM /MONDAY NIGHT THROUGH SATURDAY/

Issued at 200 PM CDT Sun Aug 23 2026

Northwesterly flow aloft is forecast to continue through the upcoming week. A storm system is forecast to pass to our north and east Tuesday night through Wednesday night with 20 to 30 percent chances of showers and storms. Models show a slight increase in moisture ahead of this storm system. Currently the higher chances of precipitation are across northwest Illinois. Rainfall amounts will be light with generally less than a tenth of an inch expected. High temperatures on Wednesday will be slightly warmer into the lower to mid 80s.

After Wednesday night, models show another shortwave topping the western U.S. ridge and flattening the flow aloft to more zonal. This system will begin to impact the area late Friday night into Saturday, bringing more humid conditions and another chance for precipitation.

AVIATION /18Z TAFS THROUGH 18Z MONDAY/

Issued at 1216 PM CDT Sun Aug 23 2026

Continued VFR expected into Monday with high pressure in control leading to mainly clear skies and light winds.

DVN WATCHES/WARNINGS/ADVISORIES

IA...None. IL...None. MO...None.